netdev - Re: HTB, HFSC, PIE, FIFO stuck on 2.4Gbit on default values

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Date:	Tue, 03 Nov 2015 20:28:37 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Denys Fedoryshchenko <nuclearcat@...learcat.com>
Cc:	Netdev <netdev@...r.kernel.org>
Subject: Re: HTB, HFSC, PIE, FIFO stuck on 2.4Gbit on default values

On Wed, 2015-11-04 at 06:12 +0200, Denys Fedoryshchenko wrote:
> Just enabling gro or gso (or together) is fine there. Thanks for advice. 
> Seems only tso causing problems.
> Also i guess if i keep tso disabled, it will solve my MTU issues (i had 
> once issue, that traffic heading to pppoe users,
> who have 14xx mtu, was blocked, when offloading enabled on transit 
> server, but can't reproduce it quickly again).
> Should i try to report to e1000e maintainers this bug? On similar setup 
> it is happening only at specific locations,
> but i am not definitely sure what can be the reason.

Not sure, have you tried per chance latest kernel (linux-4.3) for this
e1000e issue ?

Are you using vlan tags on this NIC ?


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